/// <summary>
/// Initializes a new instance of the Attraction class
/// </summary>
/// <param name="end1">Particule at first end of the spring</param>
/// <param name="end2">Particule at second end of the spring</param>
/// <param name="k">Attraction strength</param>
/// <param name="d">Minimal distance under which attraction is restricted</param>
public Attraction(Particle end1, Particle end2, float k, float d)
: base()
{
this.strength = k;
this.minDist = d;
this.End1 = end1;
this.End2 = end2;
}
/// <summary>
/// Initializes a new instance of the Spring class
/// </summary>
/// <param name="end1">Particule at first end of the spring</param>
/// <param name="end2">Particule at second end of the spring</param>
/// <param name="sk">Spring strength</param>
/// <param name="d">Damping value of spring</param>
/// <param name="rl">Rest lenght of spring</param>
public Spring(Particle end1, Particle end2, float sk, float d, float rl)
: base()
{
this.springConstant = sk;
this.damping = d;
this.restLength = rl;
this.End1 = end1;
this.End2 = end2;
}